199 struct zscom {  struct
200 	void		(*zs_txint)();	/* SCC interrupt vector routines */
224 	struct zscom	*zs_next; /* next in the circularly linked list */  argument
225 	struct zscom	*zs_back; /* back in the circularly linked list */  argument
227 	kmutex_t	*zs_excl_hi;	/* zs spinlock mutex */
228 	kmutex_t	*zs_excl;	/* zs adaptive mutex */
229 	kmutex_t	*zs_ocexcl;	/* zs adaptive mutex for open/close */
230 	kcondvar_t	zs_flags_cv;	/* condition variable for flags */
231 	ulong_t		zs_priv_str[ZS_MAX_PRIV_STR];
232 	uint_t		zs_flags;	/* ZS_* flags below */
233 	kstat_t		*intrstats;	/* interrupt statistics */
234 	timeout_id_t	zs_timer;	/* close timer */